AW: [TRNSYS-users] active wall transfer functions

["hotline" <hotline@transsolar.com>]

Dear Adriana,

Yes, for the calculation the wall is splitted by TRNBuild into two parts
at the level of the active layer. Otherwise the transfer function method wouldn't work.
However, this "trick" should bother you at all. You can look at it as one wall
as you defined it in TRNBUILD.


Kind regards,

Marion Hiller

Ihr TRNSYS Hotline Team

____________________________________________________ Mailto:Hotline@transsolar.com; http://www.transsolar.com
				


-----Ursprüngliche Nachricht-----
Von: trnsys-users-bounces@engr.wisc.edu [mailto:trnsys-users-bounces@engr.wisc.edu] Im Auftrag von Adriana Angelotti
Gesendet: Mittwoch, 22. Juni 2005 09:39
An: trnsys-users@engr.wisc.edu
Betreff: [TRNSYS-users] active wall transfer functions


Dear all,

I'm modeling a radiant ceiling as an active wall in type 56.
In the corresponding inf file two transfer functions are generated 
for the single active wall, as you can see below.
Beside this, there are also two U values. What does it mean? Is the 
active wall split into two parts?
Thank you for any suggestions.

Adriana


            ---------- WALL TYPE SOFFITTO_RAD_W1     ----------

        THERMAL CONDUCTANCE, U=     8.05263 kJ/h m2K; k-Wert=     1.62059 W/m2K

                         TRANSFERFUNCTION COEFFICIENTS
    K            A              B              C              D

    0       3.0911537E+01    4.1459660E-01    3.0911537E+01    1.0000000E+00
    1      -3.2298443E+01    2.9786315E+00   -3.2298443E+01   -4.5968926E-01
    2       5.9599377E+00    1.0543430E+00    5.9599377E+00    1.4279958E-02
    3      -1.0720429E-01    1.8285950E-02   -1.0720429E-01   -6.5467173E-06
    4       3.5107225E-05    4.7237405E-06    3.5107225E-05
   SUM      4.4658618E+00    4.4658618E+00    4.4658618E+00    5.5458415E-01


               ---------- WALL TYPE SOFFITTO_RAD_W2     ----------

        THERMAL CONDUCTANCE, U=     4.13194 kJ/h m2K; k-Wert=     0.96037 W/m2K

                         TRANSFERFUNCTION COEFFICIENTS
    K            A              B              C              D

    0       4.5769060E+00    3.8861786E+00    7.4509511E+00    1.0000000E+00
    1      -4.4496156E-01    2.4576587E-01   -3.3190067E+00
   SUM      4.1319444E+00    4.1319444E+00    4.1319444E+00    1.0000000E+00


---------------------------------------------------
Adriana Angelotti, PhD
Politecnico di Milano
Dipartimento Best
v. Bonardi 3
20133 Milano
Italy
Tel/Fax + 39 02 2399 5118

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